# Train Sim Pro vs googolChooChoo3D2

The clearest difference is price: googolChooChoo3D2 at Free against Train Sim Pro's $1.99. googolChooChoo3D2 also leads on in-app purchases (none vs 3) and review sentiment (77% vs 63%). Train Sim Pro's advantage is rating (4.5 vs 4.0) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

googolChooChoo3D2 is free to download; Train Sim Pro costs $1.99 up front. Train Sim Pro sells 3 one-off in-app purchases. googolChooChoo3D2 asks for nothing beyond the download.

Train Sim Pro holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 161 and 34 respectively. Written reviews complicate that: 63% of Train Sim Pro's written reviews are positive against 77% of googolChooChoo3D2's, so the app with the better star average is not the one people write more warmly about.

Train Sim Pro ships an update every 2 months, googolChooChoo3D2 monthly. The most recent releases landed on September 29, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Train Sim Pro | googolChooChoo3D2 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.5 (161 ratings)](https://appshunter.io/ios/app/train-sim-pro/id597315950/reviews)** | [4.0 (34 ratings)](https://appshunter.io/ios/app/googolchoochoo3d2/id1223923252/reviews) |
| Number of ratings | **161** | 34 |
| Positive reviews | 62.6% of reviews | **76.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 809 MB | 39 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [1788918 Alberta Ltd](https://appshunter.io/developer/597315953) | [Kouichi Hayashi](https://appshunter.io/developer/1809037541) |

## What reviewers say

### Train Sim Pro

[App page](https://appshunter.io/ios/app/train-sim-pro/id597315950)

Experience realistic train simulation with over 70 train types and 15 environments. Build custom scenes, enjoy cab views, and realistic sounds. Perfect for train enthusiasts of all ages.

**Highlights:** Realistic 3D graphics, 70+ 3D train types, 15 realistic 3D environments, Custom environment building, Cab views for all trains, Realistic train sounds, Train derailments

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Freight Train Driver | $0.99 | one-time |
| Commuter Train Driver | $0.99 | one-time |
| Steam Train Driver | $0.99 | one-time |

**What reviewers like**

- 👍 Great train simulator
- 🚀 Engaging and detailed
- 🚀 Improving with updates
- 💡 Customizable trains and scenery

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🐛 Glitches with train physics and animations
- 🐛 Unrealistic train and environment graphics
- 🐛 Lack of variety in train models and liveries

**Reported bugs**

- Frequent crashes when loading maps or starting sessions
- Trains behaving unrealistically (e.g. cars going off track, wheels not turning)
- Graphical issues like 2D train models and missing details
- Inconsistent or missing sound effects

**Requested features**

- Add more modern and diverse train models
- Improve train physics and animations
- Expand track layouts and environments
- Introduce missions, goals, and multiplayer
- Allow more customization options


### googolChooChoo3D2

[App page](https://appshunter.io/ios/app/googolchoochoo3d2/id1223923252)

Design and build your own 3D model railroad layouts with customizable tracks, structures, and terrain. Experience your creations from various viewpoints, including the driver's seat of a running train.

**Highlights:** 3D model railroad simulation, Customizable track and structure placement, Terrain creation and editing, Multiple viewing perspectives, Automatic tunnel generation, Driver's seat view

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Train Sim Pro free?

Train Sim Pro costs $1.99, and also offers in-app purchases.

### Is googolChooChoo3D2 free?

googolChooChoo3D2 is free to download, with no in-app purchases.

### Which has better reviews, Train Sim Pro or googolChooChoo3D2?

Train Sim Pro is rated higher. Train Sim Pro averages 4.5 out of 5 from 161 ratings, while googolChooChoo3D2 averages 4.0 from 34 ratings.

### Do Train Sim Pro or googolChooChoo3D2 have ads?

googolChooChoo3D2 shows ads; Train Sim Pro does not.

### Which is updated more often, Train Sim Pro or googolChooChoo3D2?

Train Sim Pro ships an update every 2 months, and googolChooChoo3D2 monthly. Most recently, Train Sim Pro was updated on September 29, 2026 and googolChooChoo3D2 on September 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*